Alternative Parts

  • LT8584
    LT8584

    2.5A Monolithic Active Cell Balancer with Telemetry Interface

  • LTC3300-1
    LTC3300-1

    High Efficiency Bidirectional Multicell Battery Balancer

  • LTC3300-2
    LTC3300-2

    Addressable High Efficiency Bidirectional Multicell Battery Balancer

Overview

Features and Benefits

  • Single IC Balances Up to Four 12V Lead-Acid Batteries in Series
  • All NFET Design
  • Stackable to Balance Larger Series Battery Packs
  • Standalone Balancing Operation:
    • Requires No External μP or Additional Control Circuitry
  • Balancing Current Limited by External PTC Thermistor
  • Continuous Mode and Timer Mode
  • Programmable UV and OV Fault Thresholds
  • Programmable Termination Time and Termination Voltage
  • Thermally Enhanced 38-Lead TSSOP Package
  • Click here to read "Life Extension Through Charge Equalization of Lead-Acid Batteries" on IEEE Xplore

Product Details

The LTC3305 balances up to 4 lead-acid batteries connected in series. It is intended to be used in conjunction with a separate pre-existing battery charger as part of a high performance battery system. All voltage monitoring, gate drive, and fault detection circuitry is integrated.

The LTC3305 employs an auxiliary battery or an alternative storage cell to transfer charge to or from each individual battery in the stack. A mode pin provides two operating modes, timer mode and continuous mode. In timer mode, once the balancing operation is completed, the LTC3305 goes into a low power state for a programmed time and then periodically rebalances the batteries. In continuous mode, the balancing operation continues even after the batteries are balanced to their programmed termination voltage.

The LTC3305 is available in a thermally enhanced 38-lead TSSOP package.

Applications

  • Telecom Backup Systems
  • Home Battery Powered Backup Systems
  • Industrial Electric Vehicles
  • Energy Storage Systems (ESS)
  • Medical Equipment

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Product Recommendations

LTC3305 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.